High severity · published Oct 14, 2026
CVE-2026-73793
HPE NonStop Middleware - Secret key handling vulnerability
7.9
CVSS
0.3%
EPSS
No
On KEV
Description
HPE NonStop Middleware software has secret key handling and data deserialization vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HN
HPE NonStop Middleware · Hewlett Packard Enterprise
T1155L01^AAF and earlier · source: vendor